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2025 Compare Cities People:
San Luis Obispo, CA vs Petaluma, CA

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Highlights
- Petaluma is 0% more densely populated than San Luis Obispo.
- People are 85.3% more likely to be married in Petaluma.
- The Median Age is 16.8 years older in Petaluma.
 San Luis Obispo, CAPetaluma, CAUnited States
 Population  Unlock60,050329,725,481
 Female Population49.1%  Unlock50.5%
 Male Population50.9%  Unlock49.5%
 Median Age  Unlock42.838.4
 space3
 Population - 201045,193  Unlock309,327,143
 Population - 2000  Unlock54,548285,036,114
 Population - 199041,958  Unlock251,960,433
 Pop. 2000 to Now  Unlock11.2%15.6%
 Pop. 1990 to Now13.4%  Unlock30.8%
 space4
 Population Density  Unlock4,175.493.4
 Land Area13.1  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 San Luis Obispo, CAPetaluma, CAUnited States
 Age 0 to 43.1%  Unlock5.9%
 Age 5 to 9  Unlock5.5%6.1%
 Age 10 to 142.9%  Unlock6.6%
 Age 15 to 17  Unlock4.0%3.9%
 Age 18 to 2014.7%  Unlock4.0%
 Age 21 to 24  Unlock3.0%5.2%
 Age 25 to 3413.4%  Unlock13.8%
 Age 35 to 44  Unlock13.7%12.9%
 Age 45 to 547.5%  Unlock12.6%
 Age 55 to 59  Unlock7.4%6.7%
 Age 60 to 645.5%  Unlock6.3%
 Age 65 to 74  Unlock11.1%9.6%
 Age 75 to 843.7%  Unlock4.5%
 Age 85 and over  Unlock2.6%1.9%
 space1
 Race
 San Luis Obispo, CAPetaluma, CAUnited States
 White70.7%  Unlock59.4%
 Black  Unlock1.3%12.2%
 Asian4.8%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races3.9%  Unlock3.2%
 Hispanic  Unlock21.6%18.4%
 space2
 Marriage & Family
 San Luis Obispo, CAPetaluma, CAUnited States
 Married Population28.8%  Unlock49.8%
     Currently Married  Unlock51.8%48.0%
 Married but Separated0.9%  Unlock1.8%
 Single Population  Unlock46.6%50.2%
 Never Married59.0%  Unlock33.8%
 Divorced  Unlock11.6%10.8%
 Widowed3.9%  Unlock5.6%
 space5
 Household Size  Unlock2.612.60
 Households19,035  Unlock124,010,992
 Family Households  Unlock15,05980,755,759
     Married couple, w/children23.1%  Unlock30.5%
     Married couple, no children  Unlock45.5%42.9%
 Non Family Households11,342  Unlock43,255,233
     Single householder, w/children  Unlock11.6%15.8%
     Single householder, no children15.3%  Unlock10.8%
Voting
Reviews for San Luis Obispo    21 Reviews
Bruce · Las Vegas, NV
COST OF LIVING AND FINDING A PLACE TO LIVE
Over 10 years ago

MY FIANCEE AND I ARE LOOKING TO MOVE TO SLO FOR RETIREMENT ( NEXT MONTH ) WE ARE BOTH ARTISTS AND HOPE OUR TALENT WILL HELP WITH COST OF LIVING IN SLO!!! ANY  More

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Tim · San Luis Obispo, CA
Sunny & 70º
Over 10 years ago

In almost any season of the year in San Luis Obispo, you’ll find the sun shining and the temperature hitting around 70º at some point in the day. With the temperature  More

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Sadie · San Luis Obispo, CA
Beautiful place to live hard to find a room
Over 12 years ago

San Luis Obispo and surrounding areas are beautiful, great weather, beaches, farms markets, a downtown area full of some of the best bars and restaurants, wine country,  More

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Reviews for Petaluma    16 Reviews
Chris · Petaluma, CA
Old hippies are in charge
Over 4 years ago

I agree with the low star reviews. Been here for 25 years, raised a family and seen everything turn to the left and worse. Weather is glorious, love the old Victorians  More

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O · Petaluma, CA
A great place to call home, if you can afford it
Over 4 years ago

We’ve lived here for 3 years and we love it. It has taken some time to grow on us. We moved from SF where we had lived over 15 years, we were not used to one year leases  More

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Ima · Petaluma, CA
California living at its finest!
Over 4 years ago

I’ve lived here a couple of years (after living in others parts of the Bay Area for 15+ years) and I love it! Great neighborhoods, friendly folks, good schools with  More

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Learn More About San Luis Obispo, California
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